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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 | Jan. 01, 2022 | Jan. 02, 2021 | Oct. 01, 2022 | Jul. 02, 2022
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Lease asset impairment charge | $ 2,680 |  |  |  |
Net book value of franchise rights acquired | $ 383,683 | $ 782,056 |  |  |
Franchise right maturity period | 7 years |  |  |  |
Net book value of goodwill | $ 155,998 | 157,374 | $ 155,617 |  |
Revenue, practical expedient, remaining performance obligation, description | contracts with an original expected length of one year or less. |  |  |  |
Revenue, remaining performance obligation, optional exemption, performance obligation | true |  |  |  |
Advertising expenses | $ 238,978 | 252,754 | 248,473 |  |
Deferred financing costs, amortization expense | $ 5,018 | 6,136 | 8,845 |  |
Minimum |  |  |  |  |
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Equipment, estimated useful life (in years) | 3 years |  |  |  |
Finite-lived intangible assets, estimated useful life (in years) | 3 years |  |  |  |
Maximum |  |  |  |  |
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Equipment, estimated useful life (in years) | 10 years |  |  |  |
Finite-lived intangible assets, estimated useful life (in years) | 20 years |  |  |  |
Property, Plant and Equipment |  |  |  |  |
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Long-lived assets, impairment charges | $ 758 | 516 | 1,310 |  |
Internal-Use Computer Software |  |  |  |  |
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Long-lived assets, impairment charges | $ 17 | 5 | $ 62 |  |
Franchise Rights Acquired | Maximum |  |  |  |  |
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Finite-lived intangible assets, estimated useful life (in years) | 1 year |  |  |  |
Website development costs |  |  |  |  |
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Finite-lived intangible assets, estimated useful life (in years) | 3 years |  |  |  |
Other Capitalized Software Costs | Minimum |  |  |  |  |
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Finite-lived intangible assets, estimated useful life (in years) | 3 years |  |  |  |
Other Capitalized Software Costs | Maximum |  |  |  |  |
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Finite-lived intangible assets, estimated useful life (in years) | 5 years |  |  |  |
United States |  |  |  |  |
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Net book value of goodwill | $ 104,019 | $ 105,121 |  |  |
Percentage of goodwill | 66.70% | 66.80% |  |  |
United States | Franchise Rights Acquired |  |  |  |  |
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Net book value of franchise rights acquired | $ 374,353 | $ 698,383 |  | $ 400,092 | $ 698,383
Percentage of franchise rights acquired | 97.60% | 89.30% |  | 91.50% | 92.70%
Canada |  |  |  |  |
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Net book value of goodwill | $ 39,547 | $ 42,409 |  |  |
Percentage of goodwill | 25.30% | 26.90% |  |  |
Canada | Franchise Rights Acquired |  |  |  |  |
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Net book value of franchise rights acquired |  | $ 60,117 |  | $ 19,342 | $ 34,556
Percentage of franchise rights acquired |  | 7.70% |  | 4.40% | 4.60%
United Kingdom | Franchise Rights Acquired |  |  |  |  |
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Net book value of franchise rights acquired | $ 2,666 | $ 12,187 |  |  |
Percentage of franchise rights acquired | 0.70% | 1.60% |  |  |
Australia | Franchise Rights Acquired |  |  |  |  |
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Net book value of franchise rights acquired | $ 4,232 | $ 6,529 |  |  |
Percentage of franchise rights acquired | 1.10% | 0.80% |  |  |
New Zealand | Franchise Rights Acquired |  |  |  |  |
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Net book value of franchise rights acquired | $ 2,432 | $ 4,840 |  | $ 2,141 | $ 3,574
Percentage of franchise rights acquired | 0.60% | 0.60% |  | 0.50% | 0.50%
Other Countries |  |  |  |  |
Organization And Summary Of Significant Accounting Policies Disclosure [Line Items] |  |  |  |  |
Net book value of goodwill | $ 12,432 | $ 9,844 |  |  |
Percentage of goodwill | 8.00% | 6.30% |  |  |

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